Ostaen or Ostein: How To spell?

The word Ostaen is misspelled against Ostein, a noun meaning "Ossein."

Word contains consecutive vowels 'EI' in between alphabets ost & n is misspelled as 'AE'
Wrong Spelling:  ost-ae-n 
Correct Spelling:  ost-ei-n 
Explore spell check of Ostein to spell without errors.